Article
Materials Science, Biomaterials
Hang Zhao, Liang Zhang, Jinsuo Lu, Shouning Chai, Jinliu Wei, Yuning Yu, Ruoyan Miao, Lvling Zhong
Summary: In this study, a polymeric antibacterial composite film was developed using polyvinyl alcohol (PVA) and sodium alginate (SA) as the substrate. The film utilized praseodymium-doped yttrium orthosilicate (YSO-Pr) to convert visible light into short-wavelength ultraviolet light (UVC) for bacterial killing. In vitro and in vivo tests demonstrated the effectiveness and safety of YSO-Pr/PVA/SA in inhibiting bacteria, as well as its good biocompatibility and sufficient tensile strength. This study highlights the potential of upconversion materials for medical dressings.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Inorganic & Nuclear
K. Sathya Moorthy, E. Sailatha, P. Muralimanohar, K. S. Nagaraja, C. Karnan
Summary: This study investigates the upconversion luminescence from infrared to visible emission in Ho3+ ion doped BaF2-B2O3-Al2O3 (BaAlBO3F2) oxyfluoride glass ceramics. Ho3+ doped BaAlBO3F2 nanocrystals were introduced into the glassy phase using melt-quenching method and heat treatment. XRD confirms the presence of crystalline phase, while TEM and EDAX analysis indicate the nano-sized crystal in the glass and the presence of Ho3+ ions, respectively. The prepared samples exhibit intense red and green emission, demonstrating the excellent upconversion properties of Ho3+ in the glass ceramics.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Weitao Ying, Xuemei Fan, Jianmin Gu, Shiqing Xu, Shimin Liu
Summary: In this study, a combinational upconversion (UC) all-optical logic system based on glass-ceramic material is developed. It enables the control of logic gates and logic operations through optical signals. By utilizing dual-wavelength excitation and upconversion emission, the system achieves high luminescence intensity and color adjustment, providing insights for the development of future optical computing technologies.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Xuyang Zhang, Jingbo Yu, Lili Hu, Jinjun Ren
Summary: LaF3 and NaLaF4 crystals can be selectively precipitated in the glass by adjusting the content of Na+ ions within the F-enriched phase. When the crystallization ability of these two crystals becomes similar, none of them can be precipitated due to their mutual interference in crystallization. Intense single green upconversion luminescence occurs in glasses precipitating LaF3 or NaLaF4 crystals.
INORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Kenji Shinozaki, Yoshiki Ishii, Sohei Sukenaga, Koji Ohara
Summary: This study proposes a material design to achieve fast nucleation and crystallization of nanocrystals in transparent glass fibers without the need for heat treatment processes. By investigating the impact of different structures on crystallization, the researchers have developed a suitable composition and successfully produced glass fibers with nanocrystals.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
S. K. Jakka, M. J. Soares, M. P. F. Grata, A. J. Neves, P. C. Nagajyothi, K. Pavani
Summary: This paper investigates the optical properties and potential of YOF:Ho3+/Yb3+ phosphor nanoparticles synthesized by the Pechini sol-gel method as thermal sensors. The results show that visible UC emission can be achieved using 980 nm excitation, and luminescence in the NIR region is also observed. By calculating the fluorescence intensity ratio based on thermally non-coupled levels, a thermal sensitivity of 0.32 at 300 K is obtained for the YOF material.
Article
Engineering, Environmental
Catherine Drossou, Yannis Petrakis, Konstantina Tyrovola, Nikolaos P. Xekoukoulotakis
Summary: This study investigated the photochemical degradation of the commonly prescribed antidepressant sertraline in water. The results showed that the UVC/PS process was more efficient than the UVC/H2O2 process, and both processes resulted in partial mineralization of the compound.
Article
Chemistry, Inorganic & Nuclear
Jingbo Yu, Lili Hu, Yujing Shen, Jinjun Ren
Summary: This study controlled the growth of crystals in glass by changing the glass composition and characterized the structure evolution using solid-state nuclear magnetic resonance techniques. The results showed that the Y/Na ratio determines the crystalline phases of NaYF4 precipitated in the glass.
INORGANIC CHEMISTRY
(2021)
Article
Environmental Sciences
Ying Zhang, Yujie Luo, Shiqi Fu, Xiulong Lv, Qian He, Fangying Ji, Xuan Xu
Summary: In this study, an upconversion luminescent material capable of generating UVC was synthesized and combined with a BiOCl photocatalyst to create a NYF-Bi composite material with high bactericidal efficacy against E. coli. The bactericidal performance was evaluated, and the sterilization mechanism was analyzed through carrier dynamics studies and catching agent experiments, providing a new material option for water disinfection.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Optics
Runfa Liu, Yue Pan, Jia Zhang, Xincui Zhuang, Yangbo Wang, Xufeng Zhou, Shanshan Du, Huaiyong Li, Wei Li
Summary: Two novel upconversion phosphors, Yb3+/Ho3+ co-doped BiOF and BiF3 microcrystals, were synthesized and investigated for their crystalline structure, room temperature and temperature-dependent upconversion properties. Under 980 nm laser excitation, both microcrystals exhibited characteristic emissions of Ho3+ with an identical green luminescent color, but the intensity was higher in BiF3:Yb/Ho microcrystals. The upconversion intensity and fluorescence intensity ratios of both microcrystals decreased regularly with increasing temperature, establishing a ratiometric thermometry. BiF3:Yb/Ho microcrystals demonstrated significantly superior thermometric performance, with a high relative sensitivity of 5.41% K-1 and a wide temperature sensing range of 298-673 K.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Multidisciplinary
Min Ying Tsang, Patryk Falat, Magda A. Antoniak, Roman Ziniuk, Szymon J. Zelewski, Marek Samoc, Marcin Nyk, Junle Qu, Tymish Y. Ohulchanskyy, Dominika Wawrzynczyk
Summary: This study demonstrates the simultaneous utilization of upconversion and downconversion luminescence properties by doping praseodymium (III) and ytterbium (III) ions into a nanosized fluoride matrix for biomedical applications. The emission modes in a single nanoparticle include near infrared downconversion luminescence for bioimaging and ultraviolet C range upconversion luminescence for germicide action. Additionally, the potential of near infrared luminescence bioimaging through biological tissues is shown.
Article
Materials Science, Multidisciplinary
Thomas J. de Prinse, Afshin Karami, Jillian E. Moffatt, Thomas B. Payten, Georgios Tsiminis, Lewis Da Silva Teixeira, Jingxiu Bi, Tak W. Kee, Elizaveta Klantsataya, Christopher J. Sumby, Nigel A. Spooner
Summary: Understanding the upconversion pathways of rare-earth dopants is vital for advancing their applications. This study introduces a new analysis approach using dual tunable lasers to explore the properties of upconverting materials. By investigating sensitizer-free rare-earth nanoparticles, the research demonstrates the ability to locate and interrogate novel upconversion pathways as well as modulate brightness of visible light emissions.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Environmental Sciences
Moez Guettari, Ines Gharbi, Samir Hamza
Summary: This study developed a mobile robot called i-Robot UVC, which uses UVC light for disinfection in hospitals, public transport, etc. The robot has multiple sensors, can estimate disinfection time automatically, has high safety performance, and can efficiently kill bacteria and pathogens.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Optics
Zhongli Wu, Yupeng Zhang, Dongmei Bao, Hongqing Li, Xueqing Hou, Jilan Wang
Summary: The optical transition properties of Tm3+ in oxyfluoride tellurite glass were determined using the Judd-Ofelt theory. The study obtained radiative transition rates, fluorescence branching ratios, and intrinsic lifetimes for interesting transitions or levels. It was found that the optimal doping concentration for upconversion luminescence was 0.1% Tm2O3. The analysis also confirmed two-photon and three-photon processes for specific emissions of Tm3+.
JOURNAL OF LUMINESCENCE
(2022)
Article
Engineering, Electrical & Electronic
Yin Zhiqian, Lu Pinshu, Zhu Zheng, Yang Yanmin
Summary: This study focuses on the development of UVC upconversion phosphors for visible light excitation and the solutions and methods in the field of low excitation densities. The main challenge faced is improving the UVC upconversion power under low excitation densities.
LASER & OPTOELECTRONICS PROGRESS
(2021)
Article
Engineering, Environmental
David J. Kim, Qianhong Zhu, Kali Rigby, Xuanhao Wu, Jin Hyun Kim, Jae-Hong Kim
Summary: Electrocatalysis has been proposed as a versatile technology for wastewater treatment and reuse, but the practicality of catalyst materials remains clouded by a lack of stability assessment protocols and understanding of deactivation mechanisms. This study develops a protocol to identify detrimental wastewater constituents and elucidate underlying phenomena, showing severe losses in catalyst activity and/or selectivity upon the introduction of metal pollutants. The insights garnered from this protocol aim to translate lab-scale electrocatalyst developments into practical technologies for industrial water treatment purposes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xuanhao Wu, Kali Rigby, Dahong Huang, Tayler Hedtke, Xiaoxiong Wang, Myoung Won Chung, Seunghyun Weon, Eli Stavitski, Jae-Hong Kim
Summary: A new graphene oxide-based membrane architecture was developed to efficiently degrade a specific pollutant using cobalt catalysts loaded in nanoscale pore walls. The use of a unique synthesis procedure enabled the dispersion of cobalt atoms uniformly, maintaining the membrane's structure and functionality. This study presents a critical advancement in developing catalytic membranes that combine membrane filtration and advanced oxidation processes in a more efficient single-step treatment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yanxin Gao, Min-Jeong Suh, Jae-Hong Kim, Gang Yu
Summary: The development of mixed-linker metal-organic frameworks (MOFs) is an effective strategy to enhance their performance. Integrating TCPP into different Zr-MOFs significantly affects the properties of the synthesized materials. TCPP@PCN-777 demonstrates the largest surface area and the highest O-1(2) generation rate. The loading of TCPP also influences the properties of the synthesized MOFs. The optimized TCPP@MOF, TCPP@PCN-777-30, shows high adsorption capacity and efficient degradation of the model contaminant ranitidine (RND) through both adsorption and photodegradation processes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
David J. Kim, Yuanzuo Gao, Kali Rigby, Aidan F. Meese, Hyun Jeong Lim, Hailiang Wang, Jin Hyun Kim, Jae-Hong Kim
Summary: Electrocatalytic water treatment using pulsed electrolysis is explored to enhance catalyst impurity tolerance and longevity. By analyzing real wastewater constituents and evaluating various catalyst designs, optimal pulsing sequences are formulated to maximize operational lifetime. Superior performance is achieved with a boron-doped carbon catalyst, showing high selectivity (>75%) and near complete recoveries even in the presence of detrimental impurities. A novel strategy is developed to adapt the fine-tuned settings for practical two-electrode operation, resulting in significantly improved long-term hydrogen peroxide production. The findings highlight the versatility of pulsed electrolysis for developing more practical water treatment technologies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Dahong Huang, Kali Rigby, Weirui Chen, Xuanhao Wu, Junfeng Niu, Eli Stavitski, Jae-Hong Kim
Summary: Atomic dispersion of metal catalysts on a substrate increases their atomic efficiency. However, the absence of neighboring metal sites can negatively impact the catalytic performance of single-atom catalysts (SACs) in certain industrial reactions. Metal ensemble catalysts (M-n) are a promising alternative to overcome this limitation. This study demonstrates that manipulating the coordination environment (CE) of M-n can enhance their catalytic activity.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Xiaoxiong Wang, Xuanhao Wu, Wen Ma, Xuechen Zhou, Shuo Zhang, Dahong Huang, Lea R. Winter, Jae-Hong Kim, Menachem Elimelech
Summary: This study presents a flow-through electrofiltration method using an electrified membrane and single-atom catalysts, which achieves high removal efficiency of ultra-low concentration nitrate and improves reduction activity and selectivity, offering a new solution for efficient water purification.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Physical
Xuanhao Wu, Mohammadreza Nazemi, Srishti Gupta, Adam Chismar, Kiheon Hong, Hunter Jacobs, Wenqing Zhang, Kali Rigby, Tayler Hedtke, Qingxiao Wang, Eli Stavitski, Michael S. Wong, Christopher Muhich, Jae-Hong Kim
Summary: The occurrence of high concentrations of nitrate in water resources poses a significant environmental and human health threat. Single atom alloys (SAAs) have shown promise in removing nitrate through thermocatalytic and electrocatalytic processes. This study reveals the contrasting performance of SAAs in thermocatalytic (T-NRR) and electrocatalytic (E-NRR) pathways, with Pd/Cu(1:100) SAA demonstrating the highest activity and selectivity for E-NRR. DFT calculations suggest that the superior performance of Pd/Cu(1:100) in E-NRR is attributed to the stability of NO3* in electrocatalysis and lower N2 formation barrier.
Editorial Material
Chemistry, Multidisciplinary
Denise M. M. Mitrano, Miriam L. L. Diamond, Jae-Hong Kim, Kam Chiu Tam, Min Yang, Zhanyun Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Kali Rigby, Jae-Hong Kim
Summary: In the pursuit of synthesizing high-loading and effective single-atom catalysts (SACs), the potential aggregation due to high surface free energy cannot be ignored. Catalyst stability is crucial for SACs, as they need to maintain their single-atom configuration during synthesis and reaction conditions. Evaluating SAC stability is equally important as catalyst performance, but it has not received the same level of attention. This review discusses the key factors affecting SAC stability, such as reducing environments and high temperatures, and emphasizes the intricate relationship between the environment and aggregation, including the influence of metal, support, and reaction conditions on catalytic performance.
CURRENT OPINION IN CHEMICAL ENGINEERING
(2023)
Editorial Material
Engineering, Environmental
Denise M. M. Mitrano, Miriam L. L. Diamond, Jae-Hong Kim, Kam Chiu Tam, Min Yang, Zhanyun Wang
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Engineering, Environmental
Seung Hee Chae, Min Sik Kim, Jae-Hong Kim, John D. Fortner
Summary: In this study, nanobubble (NB) generation of reactive oxygen species (ROS), particularly hydroxyl radical ((OH)-O-center dot), was extensively characterized. The generated NBs exhibited consistent physical characteristics and showed no degradation of benzoic acid (BA), a scavenger for (OH)-O-center dot, or detection of (OH)-O-center dot using electron paramagnetic resonance (EPR). Although a positive fluorescence response was measured using a fluorescence probe for (OH)-O-center dot, an alternate explanation for the result was provided, suggesting a false positive fluorescence response due to acid-catalyzed hydrolysis of the probe. Based on these results, it can be concluded that NB-induced (OH)-O-center dot generation is minimal, if present at all, under the evaluated conditions.
ACS ES&T ENGINEERING
(2023)
Editorial Material
Engineering, Environmental
Denise M. Mitrano, Miriam L. Diamond, Jae-Hong Kim, Kam Chiu Tam, Min Yang, Zhanyun Wang
ACS ES&T ENGINEERING
(2023)
Editorial Material
Environmental Sciences
Denise M. M. Mitrano, Miriam L. L. Diamond, Jae-Hong Kim, Kam Chiu Tam, Min Yang, Zhanyun Wang
Article
Nanoscience & Nanotechnology
Daniel L. Bodine, Angus P. Wilkinson
Summary: A new tetragonal polymorph of CaZrF6 is synthesized by high energy ball milling of a CaF2/ZrF4 mixture, followed by heat treatment. This polymorph is thermodynamically stable at low temperatures but transforms to the cubic form when heated above 400 degrees C. Unlike the well-known cubic form, the tetragonal form exhibits positive thermal expansion in all directions.
Article
Engineering, Environmental
Aidan Francis Meese, David J. Kim, Xuanhao Wu, Linh Le, Cade Napier, Mark T. Hernandez, Nicollette Laroco, Karl G. Linden, Jordan Cox, Parthiv Kurup, James McCall, David Greene, Michael Talmadge, Zhe Huang, Jordan Macknick, Kurban A. Sitterley, Ariel Miara, Anna Evans, Kiran Thirumaran, Mini Malhotra, Susana Garcia Gonzalez, Prakash Rao, Jennifer Stokes-Draut, Jae-Hong Kim
Summary: As water scarcity becomes more severe in the United States, it is crucial to develop strategies for reducing water use and improving water resource security. This study explores the potential of industrial wastewater as an alternative water resource through direct treatment and reuse. The researchers critically reviewed the current state of water use, treatment, and reuse in six representative industries and conducted a technoeconomic assessment to analyze the costs and potential for innovation in water treatment processes. The findings provide insights into the future of industrial water reuse and strategies for its expansion.
ACS ES&T ENGINEERING
(2022)
Article
Optics
R. B. Adamov, G. A. Melentev, I. V. Sedova, S. V. Sorokin, G. V. Klimko, I. S. Makhov, D. A. Firsov, V. A. Shalygin
Summary: This study investigates the THz luminescence in doped nanostructures with GaAs/AlGaAs quantum wells under interband optical pumping. The results show that the spatial separation of donors and acceptors can greatly enhance the integrated intensity of THz emission.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yanru Li, Lei Zhong, Sha Jiang, Yutong Wang, Binyao Huang, Guotao Xiang, Li Li, Yongjie Wang, Chuan Jing, Xianju Zhou
Summary: In this study, a ratiometric luminescent thermometry based on dual-emission centers was developed using co-doped CaNb2O6 phosphors with Bi3+ and Pr3+. The obtained samples exhibited good thermosensitive and thermochromic characteristics, with a maximum absolute sensitivity of 0.09 K-1 @ 528 K and a maximum relative sensitivity of 2.17 % K-1 @ 453 K.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yujing Gong, Yeqing Wang, Zhiyuan Wang, Yijian Sun, Yi Yu
Summary: Single crystals of Dy3+ single-doped and Dy3+/Tb3+ co-doped CaYAlO4 were grown and analyzed. The incorporation of Tb3+ resulted in increased absorption and emission cross sections. The fluorescence lifetimes and branching ratios of the yellow emission were affected by the presence of Tb3+. The deactivation effect of Tb3+ ions and energy transfer mechanism were also discussed.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Lu Chen, Zhuangzhuang Ma, Jian Chen, Wang Guo
Summary: This study focuses on enhancing the thermal robustness of phosphor converter materials by preparing composite ceramics of YAG:Ce combined with high-thermal-conductivity MgO. The composite ceramics showed high density and thermal conductivity at the optimum temperature of 1400℃. Stable laser-driven white light was obtained under blue laser excitation.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yuwei Wu, Chunhui Niu, Lei Wang, Mingqing Yang, Shiyu Zhang
Summary: Er3+-doped germanate-tellurite glasses were prepared and their structure, luminescent, and temperature-sensing properties were studied. The glass exhibited large values of O2 and O6 and its luminescence intensity varied with temperature.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Kensei Ichiba, Takumi Kato, Kenichi Watanabe, Yuma Takebuchi, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Summary: In this study, Eu-doped YVO4 single crystals with different concentrations were fabricated to evaluate their photoluminescence and scintillation properties. The results showed that the samples doped with Eu exhibited emission peaks due to 4f-4f transitions in PL and scintillation spectra. Based on the pulse height spectra, the light yield of the Eu-doped samples increased with increasing Eu concentration, while the afterglow level decreased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Daiwen Xiao, Hei-Yui Kai, Anjun Huang, Menglin Song, Ka-Leung Wong, Peter A. Tanner
Summary: The emission spectra of Cs2NaEuCl6 nanoparticles synthesized by the hot injection method are explained. The dispersion of the nanoparticles in alkane solvents in the experiment allows the determination of the magnetic dipole radiative rate for the D-5(0) -F-7(1) channel in vacuum, which is in agreement with the calculated value.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Italia V. Barbosa, Geraldine Dantelle, Alain Ibanez, Lauro J. Q. Maia
Summary: The thermal response and luminescence properties of different oxide matrices were evaluated to design more accurate thermal probes. It was found that thermal probes emitting in BW-II provide better thermal sensing with higher signal-to-noise ratio. Additionally, doping Nd3+ in Y2O3 matrix maximizes luminescence intensity, making it a promising matrix for thermal sensing.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xin Li, Yu Zhang, Hongrui Ren, Lunlong Xie, Yinsheng Di, Mengqing Han, Zhaohui Bai, Quansheng Liu, Liangliang Zhang, Jiahua Zhang
Summary: This study successfully prepared phosphor samples based on Ca3-xLuxSc2-xMgxSi3O12:Ce3+ and investigated their luminescence properties. With the increase in Lu-Mg concentration, the peak of the sample redshifted, but the thermal stability gradually decreased. The LD devices made from CLSMS:Ce3+ fluorescent materials showed a decrease in cyan-green light and an increase in red light as the Lu-Mg concentration increased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Tim Pier, Julia Hopster, Thomas Juestel
Summary: This study investigates and reports on several samples of cerium-activated gallium-based garnet phosphors. The optimal activator concentration was found to be 1 atom-%. The size of non-emitting lanthanide ions and the molar concentration of cerium strongly influenced the crystal field splitting, which in turn shaped the excitation and emission wavelengths.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Guijie Zhao, Wei Shi, Xin Xin, Fengcai Ma, Yongqing Li
Summary: This study reveals for the first time the proton transfer pathways and changes in the photophysical properties of P-TNS with three intramolecular hydrogen bonds. The reaction mechanism and driving force for the proton transfer process are explained through analysis of potential energy surface, frontier molecular orbitals, and hydrogen bond parameters, among others.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Li He, Jinshu Huang, Zhengce An, Haozhang Huang, Yu Zhao, Kexin Zhong, Bo Zhou
Summary: In this study, we designed a NaYF4:Yb3+/Tm3+@NaYF4 core-shell nanostructure to achieve thermochromic upconversion and high thermal sensitivity. We found that the blue upconversion emission of Tm3+ decreased while the deep-red emission increased with elevating temperature. The sample also showed a gradual emission color change from blue to purplish-red, and the optimal relative sensitivity reached 2.79% K-1.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Rupesh A. Talewar
Summary: A series of Li2TiO3 phosphors doped with Mn4+ and codoped with Mn4+ and Er3+ were synthesized, which demonstrated the ability of Mn4+ ions to absorb UV-Vis photons and subsequently transfer energy to Er3+ ions, resulting in the emission of near-infrared light. These materials have the potential to enhance the absorption efficiency of Er3+-based luminescent materials.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xingyuan Ma, Jianfeng Li
Summary: Carbon quantum dots (CQDs) with tunable photoluminescence properties have been synthesized using suitable carbon and dopant sources in an aqueous system. The synthesized CQDs exhibited blue, green, yellow, and red emissions, and solid-state luminescence was achieved through the preparation of solid-state fluorescent films and phosphors. This study provides important technical support for the future development of CQDs synthesis.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
De Bin Fu, Yang Bing Xu, Yu Teng Zhang, Shan Ting Liu, Xiao Fei Yang, Sheng Hua Liu
Summary: A pair of new chiral molecules, (S)-4 and (R)-4, have been designed and synthesized by introducing valine-containing groups at symmetrical positions on the periphery of an indolo[3,2-b]carbazole unit. These molecules exhibit aggregation-induced circular dichroism (AICD) properties in DMF/water mixtures, and in a mixture with 99% water fraction, they show strong, mirror-image, blue circularly polarized luminescence (CPL) signals.
JOURNAL OF LUMINESCENCE
(2024)
